It sounds like you have 19.5s. There are alot of choices. I personally do not like Michlins because of their cracking issues. I have had Dynatrac (China)tires on my first Moterhome and I loved them and they were inexpensive and contrary to what people will tell you about Chinese tires, these were great. No matter what you get, make sure that they are commonly available so that if you need to replace just one they are available around the country. Make sure you get one that is rated to carry the load and keed the pressure to the high side. Don't match the tire rating that was on the tires that you have now go by the weight of your loaded MH, they might of had the wrong tires on there.
NOTE; I am not responsible for typos, poor grammer or misspelled word !
04 Itasca, Meridian 34H, 330 Cat/2003 CR V Toad
1933 Ford 3 Window,as seen in Bye Bye Birdie
Pvt. E1 Retired, Shadow Hills,Ca.